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A compact evolved antenna for 5G communications.

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This study presents a novel miniaturized antenna design for wearable electronics. By incorporating a Split Ring Resonator (SRR), the antenna achieves enhanced radiation properties on flexible substrates.

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Area of Science:

  • Electrical Engineering
  • Materials Science
  • Electromagnetics

Background:

  • Flexible and bendable electronics are increasingly important for wearable systems.
  • Compact antennas on flexible substrates are crucial for this technology.
  • Poor radiation efficiency is a key challenge for miniaturized antennas on thin, flexible materials.

Purpose of the Study:

  • To design and fabricate a miniaturized evolved patch antenna with improved radiation properties.
  • To enhance antenna performance using a Split Ring Resonator (SRR).
  • To demonstrate the feasibility of the design on a flexible and biocompatible substrate.

Main Methods:

  • An innovative miniaturized evolved patch antenna design incorporating a Split Ring Resonator (SRR) between the antenna and ground planes.
  • Fabrication using a novel three-layer 3D-inkjet printing protocol on a 250 μm polyethylene naphthalate (PEN) substrate.
  • Characterization through scattering parameter S11 measurements and radiation pattern analysis.

Main Results:

  • The proposed antenna design achieved enhanced radiation properties.
  • Simulated and measured results for S11 and radiation patterns showed good agreement.
  • Successful fabrication on a flexible and biocompatible PEN substrate was demonstrated.

Conclusions:

  • The developed miniaturized antenna with an integrated SRR offers a viable solution for enhancing radiation efficiency in flexible electronics.
  • The fabrication method using 3D-inkjet printing is suitable for producing such advanced antennas.
  • This work contributes to the advancement of wearable systems and flexible electronic devices.